There are 19 different types of smiles: UC-San Francisco researcher identified 19 types of smiles and put them into two categories: polite “social” smiles which engage fewer muscles, and sincere “felt” smiles that use more muscles on both sides of the face.
Since Iris is the Greek goddess for the Messenger of Love, her sacred flower is considered the symbol of communication and messages. Therefore the flower iris in the language of flowers symbolizes eloquence. Based on their color, irises convey varied messages. A purple iris is symbolic of wisdom and compliments. A blue iris symbolizes faith and hope. A yellow iris symbolizes passion while white iris symbolizes purity. A gift of iris can be used to convey many emotions.